Earls Spreader Model 807 RE Mainframe Weldment
Client: Earls Industries
Location: Greater Vancouver Area, BC
Structural capacity review and finite element analysis supporting fabrication decisions for a 42LT rated load.
Project Overview
This project required an engineering validation of a container spreader mainframe weldment intended for heavy-lift service. The objective was to confirm structural adequacy under a 42LT rated load while providing practical guidance for fabrication and QA/QC.
IFEL built a traceable analysis package that connected load assumptions, material selection, and acceptance criteria to the stress and deformation results produced by the model.
- Finite element analysis with plate-element modeling
- Factored load combinations aligned to applicable standards
- Clear reporting suitable for client documentation packages
Engineering Approach
We modeled primary components using appropriate element types to capture stress distribution in thick-plate regions and welded details. The RISA-based finite element model utilized plate elements to represent the complex geometry, including thick-plate sections and critical welded connections.
Von Mises stress analysis was performed to evaluate material utilization under factored loading conditions. Results were reviewed for structural integrity and presented with practical recommendations to support decision-making without slowing fabrication.
Outcome
The client received an engineering report confirming structural integrity for the rated capacity. The analysis validated that the mainframe weldment design was adequate for the 42LT rated load, providing confidence for both fabrication and operational use.
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